Answer: 
Step-by-step explanation:
The first thing you must remember is the mulplication of signs. You know that:

You can observe that the number inside the parentheses is positive (+) and the sign that is outside the parentheses is negative (-), therefore, when you multiply these signs you get a negative sign (-). Then you get:

Now, you need to add these numbers. And the result obtained is:

Answer:
Step-by-step explanation:
A.
<u>First spin</u> <u> Second Spin</u>
____ Red |---------Red
| |---------Green
| |--------Yellow
|
____Blue |---------Red
|----------Green
|---------Yellow
B. Probability of getting a red on the first spin = 1 /2.
Answer:
21.25
Step-by-step explanation:
I just smart
Slope = (-3+4)/(0+5) = 1/5
passing (-2,2)
y = mx +b
2 = 1/5(-2) + b
2 = -2/5 + b
so b = 2 +2/5 = 12/5
equation
y = 1/5x + 12/5
answer is B y = 1/5x + 12/5
You can find the unknown side length by using pythagorean theorem. a²+b²=c²
Simply plug-in numbers into the formula. Your answer is 80.